Comparative Study of the Effectiveness of Three Techniques of Insertion of Proseal Laryngeal Mask Airway in Adults Posted For Elective Surgery
Journal Title: INTERNATIONAL JOURNAL OF SCIENTIFIC STUDY - Year 2018, Vol 6, Issue 7
Abstract
Background: ProSeal laryngeal mask airway (PLMA) (Laryngeal Mask Co. limited, Mahe, Seychelles) introduced by Dr. Archie Brain, as a modification of the classic laryngeal mask airway (LMA) designed for positive pressure ventilation, has increasingly become the mainstay of anesthesia practice in a variety of settings. The dorsal cuff and drain tube broaden its application. However, it was found to be relatively difficult to insert as compared to classic LMA. Aim: The aim of the present study was to assess the ease of insertion and correct placement of PLMA using three different techniques, namely Gum elastic bougie (GEB), insertion with an aid of introducer tool (IT), and digital (D) technique in adults undergoing elective surgeries requiring general anesthesia. Materials and Methods: A total of 150 adult patients of age group 18–60 years of either sex of American Society of Anesthesiologists (ASA) Class I and II, undergoing elective surgery for various procedures requiring general anesthesia with PLMA were included in this study. The study subjects were divided into three groups, namely GEB where insertion of PLMA is aided using a GEB, IT where insertion of PLMA is aided using an introducer, and D where PLMA is inserted using conventional D technique. These techniques were then correlated with each other in terms of ease of insertion, correct placement, time to insert PLMA, and unwanted adverse effects if any. Data are presented as the mean ± standard deviation. Fisher’s extract test and the Chi-square test were applied for the statistical analysis. Results having P < 0.05 were considered statistically significant. Results: Insertion time for the 1st attempt was similar in all the three groups but was significantly less in GEB group the incidence of visible blood staining of the device was significantly less in GEB group. The GEB-guided insertion technique is more frequently successful than the D or IT techniques and suggested that GEB-guided technique may be a useful backup technique when the D and IT techniques fail.
Authors and Affiliations
Poulami Choudhury, Veena Kachhwah, Saikat Sengupta, Subhabrata Pal, Neeraj Narang
Keywords
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